Results 21 to 30 of about 90 (86)
Change Detection of Water Resources via Remote Sensing: An L-V-NSCT Approach
Applied Sciences, 2019 Aiming at the change detection of water resources via remote sensing, the non-subsampling contour transformation method combining a log-vari model and the Stractural Similarity of Variogram (VSSIM) model, namely log-vari and VSSIM based non-subsampled ...
Wang Xin, Tang Can, Wang Wei, Li Ji
doaj +1 more source
BioMed Research International, Volume 2022, Issue 1, 2022., 2022 Breast cancer is the most prevalent form of cancer that can strike at any age; the higher the age, the greater the risk. The presence of malignant tissue has become more frequent in women. Although medical therapy has improved breast cancer diagnostic and treatment methods, still the death rate remains high due to failure of diagnosing breast cancer in
Suman Mann +7 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 There are many problems of division in natural and social sciences, and with the development of science and technology, the requirement for division is also increasing. It is difficult to divide accurately by experience and expertise alone, and the most important research branch of the division problem is the clustering algorithm.
Hua Lu, Jianrong Zhu, Zaoli Yang
wiley +1 more source
An NSCT Image Denoising Method Based on Genetic Algorithm to Optimize the Threshold
Mobile Information Systems, Volume 2022, Issue 1, 2022., 2022 In order to solve the defect that the threshold value of the NSCT transform method is too large or the real signal coefficients are directly lost during image denoising, an adaptive threshold method of genetic algorithm is used to optimize the NSCT image denoising method. The genetic algorithm is used to generate the initial population, and the genetic
Zeliang Zhang +7 more
wiley +1 more source
IET Computer Vision, 2019 The image fusion method based on sparse representation in the single‐scale image domain has produced better fusion results than the classic methods based on multi‐scale analysis nowadays.
Guiqing He +4 more
doaj +1 more source
Improved Image Fusion Method Based on NSCT and Accelerated NMF
Sensors, 2012 In order to improve algorithm efficiency and performance, a technique for image fusion based on the Non-subsampled Contourlet Transform (NSCT) domain and an Accelerated Non-negative Matrix Factorization (ANMF)-based algorithm is proposed in this paper ...
Mingdong Li, Siyu Lai, Juan Wang
doaj +1 more source
IEEE Access, 2022 This paper presents a pansharpening technique based on the non-subsampled contourlet transform (NSCT) and convolutional autoencoder (CAE). NSCT is exceptionally proficient at presenting orientation information and capturing the internal geometry of ...
Ahmad Al Smadi +4 more
doaj +1 more source
Sensors, 2019 Multi-pixel photon counting detectors can produce images in low-light environments based on passive photon counting technology. However, the resulting images suffer from problems such as low contrast, low brightness, and some unknown noise distribution ...
Xuan Wang +5 more
doaj +1 more source
Seismic Random Noise Attenuation Based on PCC Classification in Transform Domain
IEEE Access, 2020 Random noise attenuation of seismic data is an essential step in the processing of seismic signals. However, as the exploration environment is becoming more and more complicated, the energy of valid signals is weaker and the signal to noise (SNR) is much
Yu Sang +5 more
doaj +1 more source
An Enhanced Approach to Despeckle SAR Images [PDF]
Radioengineering, 2018 Synthetic Aperture Radar (SAR) image processing plays a vital role in observing the earth and in understanding its varied features. A SAR image contains edges and shapes hidden by speckle noise.
D. Anandhi, S. Valli
doaj